I really love the name Mehefin for a boy (pronounced "me-HEV-in"), but I need the opinion of some Welsh people as to whether it would be too girly for a boy's name (like calling a boy June in English).

In 1795 "Hefin" appeared in a manuscript by Iolo Morgannwg as part of an invented expression "Alban Hefin" (summer solstice). Hefin also appears as a Welsh word for "summer" in William Owen-Pughe's dictionary (1803). It is probably taken from the month name "Mehefin" (June) which literally means "midsummer" from the modern Welsh "Me-" (a prefix meaning mid) and "Haf" (summer) plus the suffix "-in."http://kimkat.org/amryw/1_enwau/enwau_bedydd_cymraeg_geiriadur_1_1265e.htm